A Scart switcher is perfect if you have lots of Scart leads, coming from your DVD player, console or VCR for example, all vying for the use of one or two Scart sockets at the back of your TV. You plug the different Scart leads in and then plug it in to the Scart socket at the back of your TV. Then all you have to do to is press a button when you want to switch between each device